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动圆与两圆外切与内切(2)
Author:
蔡永志
动圆与两圆外切与内切(2)
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（二）
判斷球體
兩位數除以一位數（一）
算柱 (兩位數)
Discover Resources
方格紙上畫正方形3
用兩圓編織美麗的曲面
ghseh 二次函數描點法上下平移-3
rotational symmetry_4
應用圓周率: 題3
Discover Topics
Incircle or Inscribed Circle
Conic Sections
Polygons
Correlation
Arithmetic Operations